Standard pump can do more than 109.9 bar, just depends what the N75 request is and if the pump can support it. Some can, some can't.
Stage 2+ request is 129.9 bar. Stock FPRV crack pressure is around that, so an RS4 valve is a good move. That cracks at 135 bar iirc.
Stage 1 is somewhere in between.
Stock boost is 0.9 bar on the BYD K04. 1.2 bar on the CDL. Dunno what the K03 request is, but probably around the same. 197hp isn't a lot of boost.